L298N Motor Driver

No specs listed.

The L298N is a dual H-bridge motor driver with separate logic and motor-supply rails; its logic inputs work with typical 5 V (and commonly 3.3 V) microcontroller signals on most modules.

• Driving two DC motors or one stepper
• Robot drive-base motor control
• Speed control via PWM on the enable pins

• It drops ~2 V across the bridge — supply the motor rail higher than the motor's rating, or use a MOSFET driver for efficiency.
• Tie the module/MCU grounds together.
• Remove the 5 V-enable jumper when feeding logic 5 V externally; keep flyback handled by the internal diodes.

• ESP32 DevKitC (WROOM-32)Espressif · ESP32-WROOM-32
• Raspberry Pi PicoRaspberry Pi · RP2040
• ATmega328P MCUATmega328P · Microchip

Community starter examples — minimal, unofficial, and provided to get you wiring fast. Verify against the manufacturer datasheet before relying on them.

// L298N dual H-bridge - drive one DC motor — community starter example
#if defined(ESP32)
  #define ENA 25
  #define IN1 26
  #define IN2 27
#else
  #define ENA 9    // Uno PWM pin
  #define IN1 8
  #define IN2 7
#endif

void setup() {
  pinMode(ENA, OUTPUT); pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT);
}

void loop() {
  digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW);   // forward
  analogWrite(ENA, 200);                             // speed 0..255
  delay(2000);
  digitalWrite(IN1, LOW);  digitalWrite(IN2, HIGH);  // reverse
  delay(2000);
}

# L298N dual H-bridge - one DC motor (ESP32) — community starter example
from machine import Pin, PWM
import time

ena = PWM(Pin(25), freq=1000)
in1 = Pin(26, Pin.OUT)
in2 = Pin(27, Pin.OUT)

def drive(forward, duty):           # duty 0..1023
    in1.value(1 if forward else 0)
    in2.value(0 if forward else 1)
    ena.duty(duty)

while True:
    drive(True, 600);  time.sleep(2)
    drive(False, 600); time.sleep(2)